Drilling-machine.



l. BEUDRY. DR'ILUNG MACHINE.

APPLlCATiON FILED IAN. l5- l9i6 RENEWED APR-7.1917- INVENTOR WTNESSESATTOH N EY rosier-- BAUDRY, Vor WATERVILLE, MAINE'.

DRL'LI'NG-MAGHINE.

Specification lof Letters Patent.

Patented J 111;;T 9, 1918.

pp-'lica'tien fled .anuafy 15, 191e, serial 1re. 72,31%. Renewed April7, 1917. serial No. 160,544.

To all whom freitag/anatra B" it lznovvn' that l, Josnrr BAUDRY, asubjectef the King of Great Britain, residing at Waterville, in thecounty of Kennebec and yil'tate of Maine' have invented certain new anduseful Improvements in Drillimg- Machines, of which thefollowing' is aspecil'ication.Y v

An ebj'eet er niyintentien is te previde a drilling machine v``rvfh'ihisy so constructed that the 'drill-is given reciprocatry movemeut nl'the eperetien, and the petsaetaatigthe "drill may be driven by agasole'ne 'engine yelettrici motor, o`i other light pdwermeans, thusmaking the machine readily portable.

A further 'object is 't so Aconstructthe "I'iiemfsr by 'Kathi-eh thedrill is held and oper- 'Fig'.l 3 is' aY vie'v'f 'in Tear'- elevationO'f vthe machine. l

Fig. "4 ie a detail view fof the zii-fill'(iperat-1 in ever.

l'he base 1"''f the machine may be mount- ,d "n Wheels; on` runners,loi" may be constructed At'o be placed directly upon the :grjoinl' 6rrock finto 'which the drill i'sto 'be eun.- l

'A islippliilg' Standard f2 iS mounted 'on the baseiadfaft itsupper endhasthe arm '3 diepeeeefet right angles to leverheiig the basel, thiserntet-ng preferably supported vby the 'brace member '4 to vhaveadditional `strength. A frame member 5 is connected vvithftlie'standaidat a point above'thefbase `land'the biete 6 anditlieluprightf? a'repr'o-Vdriving positions. mounting of the dpovver shaft 8, bearings 13fareprovided an sive engine, an velectric motor, 'or other suit-k abledriving means, to be looped` over these pulleys 9 and 10, the beltshifter 12 being provided to move the belt to either of its At a pointabove the the operating lever 14 is extended betweenthese bearings andispivtally mounted therein by the pins 15 so that the operating levermay have rocking movement.

rI h'e outer end of arm 3 is bifurcated as at 16 and a hand Wheel 17 ismounted in this bifli'urcated portion to be capable of turning movementon a vertical axis and is provided in its center With a polygonal shapedsocket. A drill supporting member 18 is cored out to receive the drill19 and the polygonal shaped extension 20 is passed up through the socketofthe hand Wheel 17 so that this drill carrying member 18 is mounted insuch a relation that the drill 19 will be vertically disposed, theconnection through the hand Wheel 17 being sufyl'fci'ently loose thatthe parts maybe capable of reciprocatoryAmovement. The drill carryingmember 18 is slit at its lower end tol form a 'clamping portion or chuck21, and the; U-sha-p'ed clamp. bolt 22 beingprovided to tighten lthisclamp portion against the 'sides of the drill 19 to hold the drill in apredetermined extension from the carrying member '18, The `drillycarrying memberis made of a considerable longitudinal extent and inVthe npper'portion is cylindrical, this cylindrical portion beingscrew-threaded as at 23 and vthe feed nut 24e being received on 'this'screw-threaded portion. This feed nut is notched yout at each side asat 25 and the fork 'arms 26 are secured on the for- Ward arm of theoperating lever 14 to be received in these notched openings 25 'of theVfeed Vnut 24 so that as the operating lever 14e maybe given rockingmovement around its pivotal' mounting v`in Ythe bearing 13,reciprocatory 'movement in a `vertical path vvfill be transmitted to thedrill carrying :member 18 and consequently to the drill 19,

the extension" 2O being moved slidably throughthe socket'of'thehandwheel 17.

' 'A11 Operating "Shift 2.8 iS 'mounted '011 'the frame member 5 at apoint adjacent the free end of the operating` lever 14, anda belt wheel29 thereon has the belt 30 looped thereover and around the drive pulley31 on the power shaft 8, so that as the belt shifter 12 may be-moved tobring the belt onto the pulley 10 and motion is givenv to the powershaft 8, the operating shaft 28 will be'turned. A coil spring 32 Visconnected between the forward arm of the operating'lever 14 and the base1 to normally exert a vtension to draw this end-of the arm downwardly,and to counteract thisv action of the spring, and to accomplish thedesired reciprocatory movement ofthe drill land the hammer drivingaction, a cam 33 is secured on the operating shaft 28 in line with thefree armof theoperating lever 14, this cam being arranged on its oneface to have a gradual rise and then cut olf Y sharply so that as theoperating shaft 28 is turned in the direction of the arrow in Fig. 1,the operating lever 14 will be swung to Vraise the drill against thetension exerted yis perhaps preferable that the cam engaging end oftheoperating lever 14; be formed in a gradual curve as at 34 and thus therelease by the cam will be even more sharp and will bepracticallyinstantaneous.

When the parts are in operation and it is desired to turn the drill toloosen the same or to prevent wedging, this may be accomplished bygiving turning movement' to the v hand wheel 17 and through theextension 20, this movement'will be imparted to the drill to cause thecutting end thereofvto be vshifted in torsional movement. By continningthis same turning of the hand wheel Y17 in one direction or the other,the drill carrying member 18 will have'theithreaded portion thereof fedthrough the feed nut 24 and in consequence the drill will `be eitherraised or lowered as may be desired, Vthis action being possible eitherduring the 'operation of the parts orwhen the driving belt has beenshifted to the loose pulley and the parts are consequently still.

While Ifhave herein shown and described one specific f'orm of. theinvention, it will be understood that various modifications in theformand arrangement of the parts can be made, that the base might bemountedon wheels, vQrrunners to permit more` ready 'transportation of thesame,:and: that other modications can beresortedto withoutfdeparti-ngfrom thespirit and scopeof myinvent1on,andhence,1 do not wish .to be lim- Toinsure ay ited to the exact disclosure, but only tosuchpoints as may beset forth Yin the claims.

1. A drilling machine comprising an upright having an arm disposed toextend therefrom and provided at its outer end with a bifurcatedopening, a drill carrierr Y mounted in conjunction with said arm to becapable of vertical reclprocatory Amovement,

a feed nut received around said drill car# rier, an operating leverpivotally mounted on the upright standard toi be capable of swingingmovement and connected with the feed nut totransmit reciprocatorymovement thereto as the Vlever is swung, vanda hand-wheel mounted inthebifurcated p0rtionf of the arm to allow j reciprocatory Vvmovement ofthe drill carrier and to turn the same to accomplish adjustment ofthedrill carrier verticallythrough the .feed nut to raiseand lowerthejdrill.

i 2. A drilling machineicomprlsing' a base, l i

, an upright carried by said `base, an arm disposed from the upright tooverhangthe base and provided at its end with a bifurcated opening, adrill carrier mountedink conjunction with said arm to beca able Vofvertical reciprocatory movement, a ed nut received around said drillcarrier, an .operating lever pivotally ymounted in its 4middle portionon the standard to be capalolerof;V

swinging movement, forky arms ,carried by one end of said operatinglever and engaged to transmit reciprocatory movement to said feed nut asthe lever is rocked, vmeans to rock the lever, and a hand wheel mountedin the r bifurcated portion of the armto allow recipcated portion, aframe member mounted ong., the op-posite side of the upright, apowerfshaft mounted near the lowerk endoffthe upright, a hand wheel mounted1in the bifurcated portion of the arm, a drill carrier mounted inconjunction lwith said arm and said hand wheel to be capable of verticalreciproca'tory movement and provided with screw-threads, a feednutreceived y on the screw-threaded portion of said drill carrier,

means to hold a drill secured withsaid drill carrier, an operating,lever-pivoted in V.its middle portionfto the upright above irthelmounting of the power shaft, forkarms on `said operatingflevernconnected withY said '.ffeednut, a spring connected .betweenthef: s operating lever and thefbase to ,normally swing said lever inone of its-paths of move; ment, an operating `.shaft carried Aby theframe vmember at a point adjacent'tho. free end of the operating lever,a driving con- In testimony whereof I aix mysignature nectionhfrfm tlepower shaf 0 sai operin presence of two witnesses.

atin s a an a cam carrie y sai operating shaft to swing the operatinglever JOSEPH BEAUDRY' against the tension of the spring and to re-Witnesses:

lease the same to permit return movement WULIAM KoNIG,

under the action of the spring. HARRY BELLIVEAUX.

Copies of this patent may he obtained for ve cents each, by addressingthe "Commissioner of Patente, Washington, D. C.

